Chengula, Dr. Duwa Hamisi, Prof. Joseph J. Msambichaka, and Prof. Bernhard Middendorf. 2018. “Synthetic Determination of Specific Density, Specific Surface Area and Particle Size Distribution of Cementitious Powder Materials”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 41 (2):177-89. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/9303.